Park, R., Chapman, H.E., Cormack, L.G. and North, P.J. 1991. New contributions to the international workshop on the seismic and retrofitting of reinforced concrete bridges Bormio, Italy, April 2-5, 1991. Bulletin of the New Zealand Society for Earthquake Engineering. 24, 2 (Jun. 1991), 139–201. DOI:https://doi.org/10.5459/bnzsee.24.2.139-201.